British couples who want babies from in vitro fertilization will now be warned their baby has a 30 percent higher risk of birth defects.

The British government will issue the warning based on research from the U.S. Center for Disease Control and Prevention in Atlanta.

The scientists found that IVF babies suffered from various defects including heart valve problems, cleft lip and palates, and defects in the digestive system.

About two and a half percent of normal babies have these problems compared to three and a half percent for IVF children.